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#1
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300 D Hard to start
Was Told I needed to move my post here so here it goes:
I have a 1984 benz 300D turbo Diesel I was told when I bought it That it had problems starting at times. I have replaced both fuel filters and replaced the primer pump and added a 12 volt fuel pump in line right after the first filter(for priming).The problem is that it takes for ever to start once it gets started it runs very good but let it sit for 4 or 5 hours and it is hard to start again. Please help Thanks: Ronald |
#2
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Quote:
Have you checked out the heater-plugs and the supply to them.....? I suspect you may have a plug or three out. Its surprising you only say need two to fail in a 5 pot engine to make it difficult to start when cold..... Any more than 2 out and it can be nearly impossible to fire-up when cold, in Winter!
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http://i190.photobucket.com/albums/z...0TDnoplate.jpg Alastair AKA H.C.II South Wales, U.K. based member W123, 1985 300TD Wagon, 256K, -Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog. W114, 1975 280E Custard Yellow, -Great above decks needs chassis welding--Really will do it this year.... |
#3
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if you have no leaks in the fuel lines
all that work on the fuel system, you could easily have a air leak there.
go to www.dieselgiant.com and follow the links for MB and glow plugs testing. good luck. John
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#4
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Glow plugs
I have tested the glowplugs I turned key on and put a test light
to each glow plug and light came on so I would say that the glow plugs are working are there any other way to test them or would it be best just to get a new set? |
#5
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That just verifies that they are getting power. If you unplug the cable to the GPs from the relay, you can test the resistance of each GP, the should be about 0.6 ohm. Usually a bad one will read infinity.
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#6
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Ahhh... no.
Quote:
http://www.dieselgiant.com/glowplugrepair.htm very easy, you just need a good digital ohm meter John
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#7
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Update
Found #2 and #4 glow plug bad They were ac plugs am replacing them with Champion plugs. will only replace the 2 right now and dieselgiants
kit later on. |
#8
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The Champion plugs will last about one year. A set of Bosch or Beru plugs will last for more than 5 years........sometimes as long as 10 years if they are not used often.
This site sells the Bosch plugs. Click on "Buy parts" at the top of the page. |
#9
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update
New glow plug are in and it started right up with no problem.
I would agree that Bosh is a Better plug only than can not get them at local parts store. Thanks for the help: Ronald |
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